US3215767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chorus effects in electronic organ
Assignee: DH Baldwin Co
•
Filing: 1962-01-23
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Granted: 1965-11-02
•
Expires: 1982-01-23
Abstract
No abstract record available.
Inventors
- 👤 Daniel W Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:55
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/06; G10H1/08; G10H1/10; Y; Y10; Y10S; Y10S84/00; Y10S84/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN AN ELECTRONIC ORGAN, A FIRST TONE GENERATOR PROVIDING A FIRST GAMUT OF MUSICAL TONES HAVING A FIRST FREQUENCY SPETCRUM INCLUDING A REPRESENTATIVE FREQUENCY F, A SECOND TONE GENERATOR PROVIDING A SECOND GAMUT OF MUSICAL TONES HAVING A SECOND FREQUENCY SPECTRUM INCLUDING A REPRESENTATIVE FREQUENCY F+D, WHERE F AND F+D ARE AT LEAST RELATIVELY ASYNCHRONOUS AND AT LEAST APPPROXIMATELY EQUAL, A CHORUS GENERATOR COMPRISING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT, SAID CHORUS GENERATOR BEING ARRANGED TO DISPLACE IN FREQUENCY AT SAID OUTPUT CIRCUIT ALL THE FREQUENCIES OF A SPECTRUM APPLIED TO SAID INPUT CIRCUIT, AND MEANS CONNECTING SAID FIRST AND SECOND TONE GENERATORS TO SAID INPUT CIRCUIT SIMULTANEOUSLY.
Claim 2
Dependent Claim
109 words
IN AN ELECTRONIC ORGAN, A FIRST TONE GENERATOR PROVIDING A FIRST GAMUT OF MUSICAL TONES HAVING A FIRST FREQUENCY SPETCRUM INCLUDING A REPRESENTATIVE FREQUENCY F, A SECOND TONE GENERATOR PROVIDING A SECOND GAMUT OF MUSICAL TONES HAVING A SECOND FREQUENCY SPECTRUM INCLUDING A REPRESENTATIVE FREQUENCY F+D, WHERE F AND F+D ARE AT LEAST RELATIVELY ASYNCHRONOUS AND AT LEAST APPPROXIMATELY EQUAL, A CHORUS GENERATOR COMPRISING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT, SAID CHORUS GENERATOR BEING ARRANGED TO DISPLACE IN FREQUENCY AT SAID OUTPUT CIRCUIT ALL THE FREQUENCIES OF A SPECTRUM APPLIED TO SAID INPUT CIRCUIT, AND MEANS CONNECTING SAID FIRST AND SECOND TONE GENERATORS TO SAID INPUT CIRCUIT SIMULTANEOUSLY.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |